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| /*! |
| \example painting/affine |
| \title Affine Transformations |
| \ingroup examples-painting |
| \brief Demonstrates how affine transformations in QPainter works. |
| |
| \brief In this example we show Qt's ability to perform affine transformations |
| on painting operations. |
| |
| \image affine-demo.png |
| |
| Transformations can be performed on any kind of graphics drawn using QPainter. |
| The transformations used to display the vector graphics, images, and text can be adjusted |
| in the following ways: |
| |
| \list |
| \li Dragging the red circle in the centre of each drawing moves it to a new position. |
| \li Dragging the displaced red circle causes the current drawing to be rotated about the |
| central circle. Rotation can also be controlled with the \uicontrol Rotate slider. |
| \li Scaling is controlled with the \uicontrol Scale slider. |
| \li Each drawing can be sheared with the \uicontrol Shear slider. |
| \endlist |
| */ |